Ene-ME

A 24 year old guy who has a mental illness called Dissociative Identity Disorder, a rare psychological disorder in which two or more personalities with distinct memories and behavior patterns apparently exist in one individual.

His illness started when he experienced a traumatic event in his childhood. A car accident made his parents die and he was the only one who survived.

Kel grew up without his parent's love and care. At the age of 24, he developed 4 alters but all of them are always there for Kel. He doesn't have any friends due to his social anxiety and traumas. He just lived on his own without feeling the love he needed.

Until he met a girl he loved the most.
The girl always listened to his stories and always believed him. The girl started visiting him every day, buying him gifts and treating him so well.
The girl is always there to take care of him and gave him the love he's longing for a long time.

He loves his girl more than anything, not until a vicious alter developed in him. The vicious alter would do anything just to protect the body he's living in. He doesn't want anybody to come close to him. Other alters are afraid of this new being because of his violence and cruelty.

The guy decided to give himself up and told his girl to run away from him to protect her from the violent alter. But because of the girl's love for him, she stayed with him and she's willing to sacrifice her life just to be with him.

The protagonist fought hard for the life of his girl and he ended up sacrificing himself for the life of his lover.

It is really hard to had a fight with yourself.

I have no enemy but myself